From 1030dc837b10a03a02a85d5504cbeec168ce49e2 Mon Sep 17 00:00:00 2001
From: Bernie Innocenti <bernie@codewiz.org>
Date: Mon, 03 May 2010 21:53:47 +0000
Subject: Import XaoS r489 (trunk after version 3.5)

---
(limited to 'src/include/gccbuild.h')

diff --git a/src/include/gccbuild.h b/src/include/gccbuild.h
new file mode 100644
index 0000000..11601c9
--- /dev/null
+++ b/src/include/gccbuild.h
@@ -0,0 +1,65 @@
+/* BUGS:
+ * bellow gcc 2.7.2 builtins are not supported
+ * gcc 2.7.2.x don't inline long doubles
+ * egcc 1.0.1 crash in constant propagation when certain builtins are enabled
+ */
+
+
+#ifndef __GCCBUILD
+#define __GCCBUILD
+#if defined(__GLIBC__)
+#include "math.h"
+#else
+#if defined(__GNUC__) && defined(__i386__) && defined(__OPTIMIZE__)
+#if 0
+#include "i386/__math.h"
+#endif
+#endif
+#endif
+
+/* We really want to use builtins. Avoid any defines */
+#if defined __GNUC__ && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
+#define __HAVE_FABSL
+#define __fabsl(x) __builtin_fabsl(x)
+#define __fabs(x) __builtin_fabsl(x)
+#define __fabsf(x) __builtin_fabsf(x)
+#define sin(x) __builtin_sin(x)
+#define cos(x) __builtin_cos(x)
+#endif
+
+
+#include "aconfig.h"
+
+#ifndef __HAVE_FABSL
+#ifdef HAVE_FABSL
+#define __fabsl fabsl
+#define __HAVE_FABSL
+#else
+#ifdef HAVE__FABSL
+#define __fabsl _fabsl
+#define __HAVE_FABSL
+#else
+#ifdef HAVE___FABSL
+#define __HAVE___FABSL
+#endif
+#endif
+#endif
+#endif
+
+/* GCC 2.7.x have problems with long double inlines. Disable them! */
+#if defined __GNUC__ && (__GNUC__ == 2 && __GNUC_MINOR__ <= 7)
+#undef __HAVE_FABSL
+#endif
+
+#ifdef HAVE_LONG_DOUBLE
+#ifndef __HAVE_FABSL
+#define myabs(x) ((x)>0?(x):-(x))
+#else
+#define myabs(x) __fabsl((number_t)(x))
+#endif
+#else
+#define myabs(x) fabs((number_t)(x))
+#endif
+
+
+#endif				/*gccbuild */
--
cgit v0.9.1